HEALTH KICKBACK LAW DISCUSSED: The Agency for Health Care Administration will take comments about changes in a law that bars health providers from getting kickbacks for referring patients to laboratories. (1 p.m., Agency for Health Care Administration, 2727 Mahan Dr., Tallahassee.)

CENTRAL FLORIDA WATER SUPPLY: St. Johns River Water Management officials hold a meeting to provide information on the development of a regional water supply plan for central Florida, including Seminole, Orange, Osceola and Polk counties and southern Lake County. The meeting will be in open house format. No formal presentations will be given, but information will be displayed and technical staff will be available to answer questions. (4 p.m., Lakefront Marina Building, 1104 Lakeshore Blvd., Second Floor, St. Cloud.)